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Module Overview
This Profibus-DP master module manages communication with multiple slave devices. You can install FUJI NP1L-PD1 directly into any FUJI SPH series PLC rack. The unit acts as the bus master for up to 125 slave nodes. It handles all data exchange without burdening the main CPU.
Technical Specifications
| Parameter | Value |
|---|---|
| Dimensions (W x H x D) | 70 mm x 100 mm x 85 mm |
| Weight | 0.31 kg |
| Communication protocol | Profibus-DP (master class 1) |
| Interface type | RS-485, 9-pin D-sub female |
| Maximum slave nodes | 125 devices |
| Baud rates | 9.6 kbps to 12 Mbps (auto-detection) |
| Maximum cable length | 1200 meters at 93.75 kbps |
| Data exchange size | 244 bytes input + 244 bytes output |
| Slave response time | Configurable from 1 ms |
| Interface to controller | SPH backplane connector |
| Total onboard components | 152 discrete parts |
| Energy storage type | Ceramic and tantalum capacitors |
| Energy storage rating | 280 µF at 16V DC |
| Operating temperature | 0°C to +55°C |
Module Layout and Components
The PCB places the Profibus controller chip at the center of the board. A dedicated communication processor handles all bus timing independently. Moreover, 152 discrete components include line drivers and isolation circuits. Tantalum capacitors provide stable power for the Profibus transceiver. Consequently, data transmission remains error-free even on long network cables.
Installation Process
You can mount FUJI NP1L-PD1 into any standard SPH series rack slot. The 9-pin D-sub connector interfaces directly with Profibus-DP network cables. Furthermore, software configuration tools set node parameters and data mapping. LED indicators show network status, bus activity, and error conditions clearly.
Performance Advantages
This module automatically detects baud rates from 9.6 kbps to 12 Mbps. It supports up to 125 slave devices on a single Profibus-DP network. Therefore, you can connect many distributed I/O stations with one module. The independent communication processor also offloads all network tasks from the main CPU.
Safety and Compliance
FUJI NP1L-PD1 meets CE and RoHS industrial standards. The board discharges stored energy below 3V within five seconds. Hence, technicians face minimal electrical risk during installation or removal.